--- parser3/src/targets/cgi/parser3.C 2001/08/31 15:35:34 1.99 +++ parser3/src/targets/cgi/parser3.C 2002/01/31 10:20:21 1.151 @@ -2,15 +2,18 @@ Parser: scripting and CGI main. Copyright(c) 2001 ArtLebedev Group(http://www.artlebedev.com) + Author: Alexander Petrosyan (http://paf.design.ru) - Author: Alexander Petrosyan (http://design.ru/paf) + $Id: parser3.C,v 1.151 2002/01/31 10:20:21 paf Exp $ */ -static const char *RCSId="$Id: parser3.C,v 1.99 2001/08/31 15:35:34 parser Exp $"; #include "pa_config_includes.h" -#ifdef WIN32 -# include +#if _MSC_VER +# include +# include +#else +# include "pa_config_paths.h" #endif #include "pa_sapi.h" @@ -19,47 +22,47 @@ static const char *RCSId="$Id: parser3.C #include "pa_request.h" #include "pa_socks.h" #include "pa_version.h" +#include "pool_storage.h" #ifdef WIN32 -# define EOL "\r\n" -#else -# define EOL "\n" +# include #endif //#define DEBUG_POOL_MALLOC +// consts + +extern const char *main_RCSIds[]; +#ifdef USE_SMTP +extern const char *smtp_RCSIds[]; +#endif +extern const char *gd_RCSIds[]; +extern const char *classes_RCSIds[]; +extern const char *types_RCSIds[]; +extern const char *parser3_RCSIds[]; +const char **RCSIds[]={ + main_RCSIds, +#ifdef USE_SMTP + smtp_RCSIds, +#endif + gd_RCSIds, + classes_RCSIds, + types_RCSIds, + parser3_RCSIds, + 0 +}; /// IIS refuses to read bigger chunks const size_t READ_POST_CHUNK_SIZE=0x400*0x400; // 1M const char *argv0; -Pool pool(0); // global pool [dont describe to doxygen: it confuses it with param names] +Pool_storage pool_storage; +Pool pool(&pool_storage); // global pool [dont describe to doxygen: it confuses it with param names] bool cgi; ///< we were started as CGI? -#ifdef WIN32 -/// global system errors into parser exceptions converter -static LONG WINAPI TopLevelExceptionFilter(struct _EXCEPTION_POINTERS *ExceptionInfo) { - char buf[MAX_STRING]; - if(ExceptionInfo && ExceptionInfo->ExceptionRecord) { - struct _EXCEPTION_RECORD *er=ExceptionInfo->ExceptionRecord; - snprintf(buf, MAX_STRING, "Exception 0x%X at %p", - er->ExceptionCode, - er->ExceptionAddress); - } else - strcpy(buf, "Exception "); - - PTHROW(0, 0, - 0, - buf); - - return EXCEPTION_EXECUTE_HANDLER; // never reached -} -#endif - // SAPI -// appends to parser3.log located beside my binary if openable, to stderr otherwize -void SAPI::log(Pool& pool, const char *fmt, ...) { +static void log(const char *fmt, va_list args) { bool opened; FILE *f=0; @@ -80,10 +83,12 @@ void SAPI::log(Pool& pool, const char *f const char *stamp=ctime(&t); fprintf(f, "[%.*s] ", strlen(stamp)-1, stamp); // message - va_list args; - va_start(args,fmt); - vfprintf(f, fmt, args); - va_end(args); + + char buf[MAX_STRING]; + size_t size=vsnprintf(buf, MAX_STRING, fmt, args); + remove_crlf(buf, buf+size); + + fwrite(buf, size, 1, f); // newline fprintf(f, "\n"); @@ -93,16 +98,63 @@ void SAPI::log(Pool& pool, const char *f fflush(f); } -const char *SAPI::get_env(Pool& pool, const char *name) { - return getenv(name); +// appends to parser3.log located beside my binary if openable, to stderr otherwize +void SAPI::log(Pool& , const char *fmt, ...) { + va_list args; + va_start(args,fmt); + ::log(fmt, args); + va_end(args); } -size_t SAPI::read_post(Pool& pool, char *buf, size_t max_bytes) { +void SAPI::die(const char *fmt, ...) { +#ifdef DEBUG_POOL_MALLOC + extern void log_pool_stats(Pool& pool); + log_pool_stats(pool); +#endif + + va_list args; + va_start(args,fmt); + // log + + // logging is more important than user + // she can cancel download, we'd get SIG_PIPE, + // nothing would be logged then + ::log(fmt, args); + + // inform user + + char body[MAX_STRING]; + int content_length=vsnprintf(body, MAX_STRING, fmt, args); + + va_end(args); + + // prepare header + // let's be honest, that's bad we couldn't produce valid output + SAPI::add_header_attribute(pool, "status", "500"); + SAPI::add_header_attribute(pool, "content-type", "text/plain"); + char content_length_cstr[MAX_NUMBER]; + snprintf(content_length_cstr, MAX_NUMBER, "%u", content_length); + SAPI::add_header_attribute(pool, "content-length", content_length_cstr); + + // send header + SAPI::send_header(pool); + + // body + SAPI::send_body(pool, body, content_length); + + exit(1); +} + +const char *SAPI::get_env(Pool& , const char *name) { + return getenv(name); +} + +size_t SAPI::read_post(Pool& , char *buf, size_t max_bytes) { size_t read_size=0; do { int chunk_size=read(fileno(stdin), buf+read_size, min(READ_POST_CHUNK_SIZE, max_bytes-read_size)); - if(chunk_size<0) + if(chunk_size<=0) break; read_size+=chunk_size; } while(read_sizeExceptionRecord) + throw Exception(0, 0, + 0, + "Exception 0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress); + else + throw Exception(0, 0, 0, "Exception "); + else + throw Exception(0, 0, 0, "Exception "); + } +#endif +} + +#if _MSC_VER +int failed_new(size_t size) { + SAPI::die("out of memory in 'new', failed to allocated %u bytes", size); + return 0; // not reached +} +#endif + +#ifdef HAVE_SET_NEW_HANDLER +void failed_new() { + SAPI::die("out of memory in 'new'"); +} +#endif + int main(int argc, char *argv[]) { +// _asm int 3; argv0=argv[0]; umask(2); -#ifdef WIN32 - setmode(fileno(stdin), _O_BINARY); - setmode(fileno(stdout), _O_BINARY); - setmode(fileno(stderr), _O_BINARY); -#endif - // were we started as CGI? cgi= getenv("SERVER_SOFTWARE") || @@ -170,192 +399,74 @@ int main(int argc, char *argv[]) { if(!cgi) { if(argc<2) { printf( - "Parser/%s Copyright(c) 2001 ArtLebedev Group(http://www.artlebedev.com)"EOL - "Author: Alexander Petrosyan (http://design.ru/paf)"EOL - EOL - "Usage: %s "EOL, + "Parser/%s Copyright(c) 2001 ArtLebedev Group(http://www.artlebedev.com)\n" + "Author: Alexander Petrosyan (http://paf.design.ru)\n" + "\n" + "Usage: %s \n", PARSER_VERSION, argv0?argv0:"parser3"); return 1; } } - char *filespec_to_process=cgi?getenv("PATH_TRANSLATED"):argv[1]; #ifdef WIN32 - back_slashes_to_slashes(filespec_to_process); -#endif - filespec_to_process=full_file_spec(filespec_to_process); - - const char *request_method=getenv("REQUEST_METHOD"); - bool header_only=request_method && strcasecmp(request_method, "HEAD")==0; - PTRY { // global try - // must be first in PTRY{}PCATCH -#ifdef WIN32 - SetUnhandledExceptionFilter(&TopLevelExceptionFilter); + setmode(fileno(stdin), _O_BINARY); + setmode(fileno(stdout), _O_BINARY); + setmode(fileno(stderr), _O_BINARY); #endif - // init socks - init_socks(pool); +#if _MSC_VER + _set_new_handler(failed_new); - // init global classes - init_methoded_array(pool); - // init global variables - pa_globals_init(pool); +#ifdef _DEBUG + // Get current flag + int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG ); + + // Turn on leak-checking bit + tmpFlag |= _CRTDBG_LEAK_CHECK_DF; + + // Set flag to the new value + _CrtSetDbgFlag( tmpFlag ); +// _CrtSetBreakAlloc(471); - if(!filespec_to_process) - PTHROW(0, 0, - 0, - "Parser/%s", PARSER_VERSION); - - // Request info - Request::Info request_info; - if(cgi) { - if(const char *env_document_root=SAPI::get_env(pool, "DOCUMENT_ROOT")) - request_info.document_root=env_document_root; - else if(const char *path_info=SAPI::get_env(pool, "PATH_INFO")) { - // IIS - size_t len=strlen(filespec_to_process)-strlen(path_info); - char *buf=(char *)pool.malloc(len+1); - memcpy(buf, filespec_to_process, len); buf[len]=0; - request_info.document_root=buf; - } else - PTHROW(0, 0, - 0, - "CGI: no PATH_INFO defined(in reinventing DOCUMENT_ROOT)"); - } else { - static char buf[MAX_STRING]; - strncpy(buf, filespec_to_process, MAX_STRING-1); buf[MAX_STRING-1]=0; - if(rsplit(buf, '/') || rsplit(buf, '\\')) // strip filename - request_info.document_root=buf; - else - request_info.document_root=""; - } - request_info.path_translated=filespec_to_process; - request_info.method=request_method; - const char *query_string=SAPI::get_env(pool, "QUERY_STRING"); - request_info.query_string=query_string; - if(cgi) { - if(const char *env_request_uri=SAPI::get_env(pool, "REQUEST_URI")) - request_info.uri=env_request_uri; - else if(const char *path_info=SAPI::get_env(pool, "PATH_INFO")) - if(query_string) { - char *reconstructed_uri=(char *)malloc( - strlen(path_info)+1/*'?'*/+ - strlen(query_string)+1/*0*/); - strcpy(reconstructed_uri, path_info); - strcat(reconstructed_uri, "?"); - strcat(reconstructed_uri, query_string); - request_info.uri=reconstructed_uri; - } else - request_info.uri=path_info; - else - PTHROW(0, 0, - 0, - "CGI: no PATH_INFO defined(in reinventing REQUEST_URI)"); - - if(const char *script_name=SAPI::get_env(pool, "SCRIPT_NAME")) { - size_t script_name_len=strlen(script_name); - size_t uri_len=strlen(request_info.uri); - if(strncmp(request_info.uri,script_name, script_name_len)==0 && - script_name_len != uri_len) // under IIS they are the same - PTHROW(0, 0, - 0, - "CGI: illegal call"); - } - } else - request_info.uri=0; - - request_info.content_type=SAPI::get_env(pool, "CONTENT_TYPE"); - const char *content_length=SAPI::get_env(pool, "CONTENT_LENGTH"); - request_info.content_length=(content_length?atoi(content_length):0); - request_info.cookie=SAPI::get_env(pool, "HTTP_COOKIE"); - request_info.user_agent=SAPI::get_env(pool, "HTTP_USER_AGENT"); - - // prepare to process request - Request request(pool, - request_info, - cgi ? String::UL_USER_HTML : String::UL_AS_IS - ); - - // some root-controlled location -#ifdef WIN32 - // c:\windows - static char root_auto_path[MAX_STRING]; - GetWindowsDirectory(root_auto_path, MAX_STRING); -#else - // ~nobody todo: figure out a better place - const char *root_auto_path=SAPI::get_env(pool, "HOME"); #endif - - // beside by binary - static char site_auto_path[MAX_STRING]; - strncpy(site_auto_path, argv0, MAX_STRING-1); site_auto_path[MAX_STRING-1]=0; // filespec of my binary - if(!( - rsplit(site_auto_path, '/') || - rsplit(site_auto_path, '\\'))) { // strip filename - // no path, just filename - site_auto_path[0]='.'; site_auto_path[1]=0; - } - - // process the request - request.core( - root_auto_path, false, - site_auto_path, false, - header_only); - - // - done_socks(); -#ifdef DEBUG_POOL_MALLOC - extern void log_pool_stats(Pool& pool); - log_pool_stats(pool); #endif - // must be last in PTRY{}PCATCH -#ifdef WIN32 - SetUnhandledExceptionFilter(0); +#ifdef HAVE_SET_NEW_HANDLER + std::set_new_handler(failed_new); #endif - // - if(!cgi) - SAPI::send_body(pool, EOL, strlen(EOL)); - - // successful finish - return 0; - } PCATCH(e) { // global problem - // must be first in PCATCH{} + + char *filespec_to_process=cgi?getenv("PATH_TRANSLATED"):argv[1]; #ifdef WIN32 - SetUnhandledExceptionFilter(0); + back_slashes_to_slashes(filespec_to_process); #endif + filespec_to_process=full_file_spec(filespec_to_process); + + const char *request_method=getenv("REQUEST_METHOD"); + bool header_only=request_method && strcasecmp(request_method, "HEAD")==0; + + try { // global try + call_real_parser_handler__do_SEH( + filespec_to_process, + request_method, header_only); + } catch(const Exception& e) { // global problem // don't allocate anything on pool here: // possible pool' exception not catch-ed now // and there could be out-of-memory exception - const char *body=e.comment(); - // log it - SAPI::log(pool, "exception in request exception handler: %s", body); - - // - int content_length=strlen(body); - - // prepare header - SAPI::add_header_attribute(pool, "content-type", "text/plain"); - char content_length_cstr[MAX_NUMBER]; - snprintf(content_length_cstr, MAX_NUMBER, "%u", content_length); - SAPI::add_header_attribute(pool, "content-length", content_length_cstr); - - // send header - SAPI::send_header(pool); - - // body - if(!header_only) - SAPI::send_body(pool, body, content_length); - - // - if(!cgi) - SAPI::send_body(pool, EOL, strlen(EOL)); - - // unsuccessful finish - return 1; + SAPI::die("exception in request exception handler: %s", e.comment()); +#ifndef _DEBUG + } catch(...) { + SAPI::die(""); +#endif } - PEND_CATCH + + +#ifndef WIN32 + // + if(!cgi) + SAPI::send_body(pool, "\n", 1); +#endif + return 0; }